Grey aliens, also referred to as Zeta Reticulans, Roswell Greys, or simply, Greys, are purported extraterrestrial beings. They are frequent subjects of close encounter and alien abduction claims, the details of which vary widely. Greys are typically described as having small, humanoid bodies, smooth, grey skin, proportionately large, hairless heads, and large, black, almond-shaped eyes. The Barney and Betty Hill abduction claim, which purportedly took place in New Hampshire in 1961, popularized Grey aliens. Precursor figures have been described in science fiction and similar descriptions appeared in later accounts of the 1947 Roswell UFO incident and early accounts of the 1948 Aztec UFO hoax.